| 摘要 |
<p>PURPOSE:To execute the preserving, transporting and supplying of metal-contg. dust while the oxidation of metallic components therein is suppressed by dispersing the metal contg. dust into heavy oil and converting it into slurry. CONSTITUTION:Metal-contg. dust is dispersed into heavy oil and is converted into slurry, which is preserved, transported and supplied to a valuable metal recovering equipment while the oxidation of metallic components is suppressed. In this way, the metal-contg. dust can economically be preserved, transported and supplied. Furthermore, by blowing the above slurry into the valuable metal recovering equipment, reducing heat is made needless to permit economical recovering. At this time, the metal-contg. dust is mixed in the heavy oil preferably by <=80wt.%. Moreover, for recovering valuable metals contg. low S, the heavy oil having <=0.5wt.% S content is preferably used.</p> |
